ALBUQUERQUE, N.M. — President Barack Obama’s shift to support gay marriage is energizing young Hispanic voters who have been working side-by-side with gay activists in their push for immigration reform. The alliance has been growing across the country, helping dispel what many say is an out…

WASHINGTON — The number of Mexican immigrants living illegally in the U.S. has dropped significantly for the first time in decades, a dramatic shift as many illegal workers, already in the U.S. and seeing few job opportunities, return to Mexico.